Department of Ophthalmology, National University Hospital, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
J Refract Surg. 2010 Mar;26(3):177-82. doi: 10.3928/1081597X-20100224-03. Epub 2010 Mar 11.
To assess the near and distance visual acuity achieved with implantation of the ReSTOR SA60D3 and SN60D3 (Alcon Laboratories Inc) and Tecnis ZM900 (Abbott Medical Optics [AMO]) multifocal intraocular lens (IOL) after cataract surgery.
This is a retrospective study of 108 eyes of 54 patients who underwent uneventful bilateral phacoemulsification of cataract and IOL implantation at an ophthalmic center in Singapore by a single surgeon. Inclusion criteria were visually significant cataracts, corneal astigmatism <2.00 diopters, and no other ocular diseases. Patients received the SA60D3, SN60D3, or ZM900 multifocal IOL in both eyes. Binocular near and distance visual acuity outcomes were assessed 3 months after second-eye surgery.
No difference in mean postoperative uncorrected and best spectacle-corrected visual acuity for distance among the groups was noted. The ZM900 lens was significantly better than both ReSTOR lenses for uncorrected near vision with 96.7% achieving N5 compared to 75% of SA60D3 patients and 83.3% of SN60D3 patients (P=.003). For distance corrected near vision, 100% of ZM900 patients achieved N5 compared to 83.3% for each the SA60D3 and SN60D3 IOLs (P=.005). No significant difference between both ReSTOR lenses for near vision was noted.
All three IOLs provide similar uncorrected and best corrected distance visual acuity. However, the ZM900 IOL provides better binocular distance corrected and uncorrected near acuity than the SA60D3 or SN60D3. The ZM900 IOL group was more myopic preoperatively compared to the other two groups, which may be a contributing factor.
评估白内障手术后植入 ReSTOR SA60D3 和 SN60D3（爱尔康公司）和 Tecnis ZM900（ Abbott Medical Optics [AMO]）多焦点人工晶状体（IOL）的近距和远距视力。
这是对新加坡一家眼科中心的 54 名患者的 108 只眼进行的回顾性研究，这些患者均由同一位外科医生进行了无并发症的双眼白内障超声乳化吸除术和 IOL 植入术。纳入标准为视力明显的白内障、角膜散光<2.00 屈光度，且无其他眼部疾病。患者双眼均植入 SA60D3、SN60D3 或 ZM900 多焦点 IOL。术后 3 个月评估双眼近距和远距视力结果。
各组之间术后未矫正和最佳矫正远视力的平均差异无统计学意义。ZM900 晶状体在未矫正近视力方面明显优于两种 ReSTOR 晶状体，96.7%的患者达到 N5，而 SA60D3 患者为 75%，SN60D3 患者为 83.3%（P=.003）。对于距离矫正的近视力，100%的 ZM900 患者达到 N5，而 SA60D3 和 SN60D3 IOL 患者分别为 83.3%（P=.005）。两种 ReSTOR 晶状体在近视力方面无显著差异。
三种 IOL 均提供相似的未矫正和最佳矫正远视力。然而，ZM900 IOL 提供更好的双眼距离矫正和未矫正的近视力，优于 SA60D3 或 SN60D3。与其他两组相比，ZM900 晶状体组术前近视程度更高，这可能是一个促成因素。
